Just bought a used B1-1 break barrel rifle.
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Just bought a used B1-1 break barrel rifle.
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Topic: Just bought a used B1-1 break barrel rifle. (Read 32230 times))
hoffy43
Marksman
Posts: 474
Tennessee
Real Name: John
Re: Just bought a used B1-1 break barrel rifle.
«
Reply #20 on:
February 12, 2011, 02:21:21 PM »
Hey Grizz, looks great! Keep up the great work.
John
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GrizzlyMan
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Re: Just bought a used B1-1 break barrel rifle.
«
Reply #21 on:
March 01, 2011, 10:05:11 PM »
Update:
Now with the chrony I can tell if the tuning is helping or not. With the cut spring (about 5 loops, measures 6.5") is shooting an average of 500 fps, stays consistent from 492 to 510 in that range.
Swapped to a bigger spring of around 5 more loops (almost 8.5") which is a spring a tad smaller than the original one.
***
With the above spring it is in the 500 fps.
***
The longer spring made it "seem" to shoot with more power because of the recoil and nasty twang. With the longer one it is in the 430 fps range and sometimes lower, and cocking plus trigger is not good at all.
I read a few postings above it can shoot in the 700 fps range, now it is a matter of the leather seal IMO. I like where the rifle is right now in the 500 fps, very smooth and quiet, and there is no twang or whatever it is called. Have a few new leather seals dipped in oil and see how it goes from there. Also the chamber piston housing is small so there is not a lot of space to work on for more power, lets see as I could be wrong.
Cheers!
«
Last Edit: March 01, 2011, 10:07:29 PM by GrizzlyMan
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northern lights
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Re: Just bought a used B1-1 break barrel rifle.
«
Reply #22 on:
March 03, 2011, 08:03:43 PM »
griz the 700fps is for the b2-1 not b1-1 but 500fps is plenty for out to 20yd,s
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Pete
GTA Senior Contributor
Posts: 2297
Re: Just bought a used B1-1 break barrel rifle.
«
Reply #23 on:
March 03, 2011, 11:08:52 PM »
Hi...
I have a B1-3...
same action as yours in a diffrent stock...
I done a tune? on it... had 3 coils broken off the spring
So I tossed that bit away and made a spacer to take up the gap.
Made a urethane seal to replace the leather...
The guns no better..but it shoots again..
they are great wee bird guns...
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Just bought a used B1-1 break barrel rifle.